Bought this last week after a break of about 10 years during which I mainly used wand concealers. I stopped back then because I found it made my undereye area look very dry and lined but I do like the coverage of a thicker product so I thought I'd give it another go.
I use C40 Studio Fix powder but the MAC artist matched me with NW25 as the red tones are better for covering dark circles. I bought NW30 because I often wear concealer without foundation and this shade was a better match to my skin tone.
I love the thickness of this product because it stays where you place it, unlike wand concealers which I sometimes find easy to overapply and then spend far too long on a workday morning trying to blend.
To compensate for the thickness you do need to apply a decent amount of moisturiser/eye cream (but not too much) and wait a few minutes for it to absorb, to help the concealer go on smoothly. I use my ring finger or a brush to apply, then tap and blend with my ring finger. This concealer is quite matte so you need very little powder, if any, to set; too much will definitely highlight lines. I tend to apply the concealer, leave it a few minutes, then pat it down again before the lightest dusting of powder if it looks as if it's settled into undereye lines.
It always takes me a few attempts to get a new concealer to work for me, but less is definitely more with this product. You don't need a lot for good coverage, and I've found it wears well through the day without caking if I get it right.
I've got a couple of wand concealers on the go but I will continue to use this product on days when I need more coverage or don't have a lot of time.
Glad I've rediscovered this classic!